In the context of electromagnetic radiation, the radiation emitted by an opaque object is called _____.
A) alpha radiation
B) blackbody radiation
C) neutron radiation
D) gamma radiation
Question 2According to Wien's law, _____.
A) cooler objects emit more energy than hotter objects when the size of the objects are different
B) the hotter an object is, the shorter is the wavelength of its maximum intensity
C) the cooler an object is, the shorter is the wavelength of its maximum intensity
D) hotter objects emit less energy than cooler objects of the same size
Question 3Which of the following statements is true of an electron?
A) Binding energy is large when a large amount of energy is needed to pull an electron away from an atom.
B) The energy that holds an electron to an atom is referred to as its radiation energy.
C) The presence of electrons allows an atom to have unlimited amounts of binding energy.
D) It is a low-mass atomic particle that carries a positive charge when combined with a proton.
Question 4The rotation of a body in which different parts of the body have different periods of rotation is referred to as _____.
A) translational rotation
B) periodical trajectory
C) partial trajectory
D) differential rotation
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